A Chinese-South African research team has tested a quantum microsatellite for space-to-ground communications. By sending two images over 12,900 km using a shared encryption key, they set a new record and laid groundwork for a future global quantum network. Their aim is to establish a vast network of microsatellites and optical ground stations.

Recent developments in quantum communication have emerged through a joint China-South Africa initiative. Researchers successfully utilized a compact quantum microsatellite along with portable ground stations to set a new record in quantum communications. They achieved the transmission of two images—a photo of China’s Great Wall and another from Stellenbosch—over a distance of 12,900 km (8,000 miles) utilizing a shared encryption key.

This groundbreaking research indicates a significant step towards a global quantum network. The successful communication feats achieved with the microsatellite hint at the potential for widespread quantum key distribution. Future plans involve launching additional microsatellites to create a comprehensive network, thereby enhancing communication, computing, and sensing capabilities.

Original Source: www.scmp.com